Performance And Quality Requirements Of Resin Lining Cloth

(1)

The feel and elasticity.

The feel and elasticity of resin lining cloth are mainly determined by the use of interlining. Different clothing and different uses have different requirements for the feel of the interlining. Therefore, the resin interlining usually has three kinds of soft, medium and hard feel, and each hand has better elasticity, and has durability and retention. That is, when the ambient temperature or humidity changes or the interlining is washed by water, the handle and elasticity will not change greatly.

The resistance and washability of the resin lining cloth is one of the methods to distinguish the advantages and disadvantages of the resin lining cloth. The good quality interlining has little change in hand feel and elasticity after washing, and the quality and the elasticity of the lining cloth with poor quality will change greatly.

The feel of the resin lining cloth is expressed by stiffness. The test method for stiffness of woven resin lining is made of national standard fabric stiffness test method and inclined plane suspension method.

Textiles for woven elastomeric interlining - national standard textile fabrics - Determination of the recovery of creases by means of recovery angle.

(two) size change of resin lining washings.

The size change of resin lining is mainly caused by wetting, expansion and relaxation of fibers and fabrics during washing.

Because the resin interlining has been finished by resin finishing, the size change of the water washings is compared with the size change rate of the wash size. The size change rate is used to express the size change rate = (after the test distance measured before the test distance) / the measured distance before the test is 100% *, the dimension change index of the resin interlining weft and zonal water washing, pure cotton fabric: water washing size change, meridian no less than 1.5%, zonal not less than -1.5%, polyester cotton and polyester fabric: washing size change, meridian no less than 1.2%, zonal not less than - 1.2%.

(three)

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Breaking strength is another important indicator of interlining. It is a technical difficulty in production, because the feel and breaking strength of interlining are a pair of contradictions. The harder the interlining feels, the more the fracture strength decreases, the more excellent the handle is, and the excessive amount of resin will often cause the brittleness of the interlining.

(four) yellowing of chlorine.

Chlorinated yellowing is the main drawback of resin interlining. It often has adverse effects on fabrics because the resin finishing agent containing resin interlining usually contains N- hydroxymethyl amide, while N- hydroxymethyl amide contains nitrogen. In the washing process, if there is effective chlorine in sodium hypochlorite or water, it will produce yellowing substances, resulting in yellowing phenomenon of resin lining cloth.

Resin linings superior grade chlorine absorption yellowing requirements at level 3-4 or above.

(five) free formaldehyde content of resin interlining.

The problem of formaldehyde pollution is common in general resin interlining. With the continuous improvement of clothing hygiene requirements, the control of formaldehyde content in textile products is becoming more and more stringent in various countries. For example, Japan has stipulated the control standard of formaldehyde content of various textiles, and promulgated corresponding laws.

Coat category: formaldehyde content is lower than 1000mg/, and middle class: formaldehyde content is lower than 300mg/kg, underwear category: formaldehyde content 0-75mg/kg, baby class: formaldehyde free.

Therefore, the production of low formaldehyde and formaldehyde free resin interlining is a major issue in the production of resin interlining.

(six) coloured resin interlining

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With the development of garment factories towards individuation, garment, fashion and top-grade, the demand for coloured resin interlining is gradually increasing.

But when producing coloured resin interlining, attention should be paid to the fastness and the selection of dyes.

The resin interlining should also have good air permeability. It can be cut forward, that is, stain blade when cutting, good sewing quality of sewing material and sewing freely on the sewing machine.